10121102020 has 48 divisors (see below), whose sum is σ = 22384454400. Its totient is φ = 3833395200.

The previous prime is 10121101979. The next prime is 10121102021. The reversal of 10121102020 is 2020112101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 10121101988 and 10121102006.

It is not an unprimeable number, because it can be changed into a prime (10121102021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 887716 + ... + 899044.

It is an arithmetic number, because the mean of its divisors is an integer number (466342800).

Almost surely, 2^10121102020 is an apocalyptic number.

10121102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10121102020 is an abundant number, since it is smaller than the sum of its proper divisors (12263352380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10121102020 is a wasteful number, since it uses less digits than its factorization.

10121102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13708 (or 13706 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 10121102020 its reverse (2020112101), we get a palindrome (12141214121).

The spelling of 10121102020 in words is "ten billion, one hundred twenty-one million, one hundred two thousand, twenty".